#ifndef _LOGIN_H_
#define _LOGIN_H_
#include "element.h"

bool loginOperation(UserNode *head, UserData *user);
void readFileData(UserNode **user_head, FlightNode **flight_head);
void writeFileData(UserNode *user_head, FlightNode *flight_head);
void updateUserNode(UserNode *head, UserData *user);
#endif